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Finding the Fourth Proportional to 19,316.63, 26,655.08 and 10,818.08

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Solution

The fourth proportional to 19,316.63, 26,655.08 and 10,818.08 is: 14,927.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,316.63 : 26,655.08 = 10,818.08 : x
  2. Step 2: Convert to fraction form
    19,316.63/26,655.08 = 10,818.08/x
  3. Step 3: Cross multiply
    19,316.63x = 26,655.08 × 10,818.08
  4. Step 4: Simplify right side
    19,316.63x = 288,356,775.40
  5. Step 5: Solve for x
    x = 288,356,775.40/19,316.63
  6. Step 6: Final answer
    x = 14,927.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.