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Finding the Fourth Proportional to 25,903,848.80, 38,804,597.40 and 13,133,518.40

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Solution

The fourth proportional to 25,903,848.80, 38,804,597.40 and 13,133,518.40 is: 19,674,330.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,903,848.80 : 38,804,597.40 = 13,133,518.40 : x
  2. Step 2: Convert to fraction form
    25,903,848.80/38,804,597.40 = 13,133,518.40/x
  3. Step 3: Cross multiply
    25,903,848.80x = 38,804,597.40 × 13,133,518.40
  4. Step 4: Simplify right side
    25,903,848.80x = 509,640,893,957,492.12
  5. Step 5: Solve for x
    x = 509,640,893,957,492.12/25,903,848.80
  6. Step 6: Final answer
    x = 19,674,330.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.