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Finding the Fourth Proportional to 14,070.84, 19,417.08 and 7,783.08

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Solution

The fourth proportional to 14,070.84, 19,417.08 and 7,783.08 is: 10,740.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.84 : 19,417.08 = 7,783.08 : x
  2. Step 2: Convert to fraction form
    14,070.84/19,417.08 = 7,783.08/x
  3. Step 3: Cross multiply
    14,070.84x = 19,417.08 × 7,783.08
  4. Step 4: Simplify right side
    14,070.84x = 151,124,687.01
  5. Step 5: Solve for x
    x = 151,124,687.01/14,070.84
  6. Step 6: Final answer
    x = 10,740.27

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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.