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Finding the Fourth Proportional to 35,385.71, 53,078.76 and 10,426.07

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Solution

The fourth proportional to 35,385.71, 53,078.76 and 10,426.07 is: 15,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,385.71 : 53,078.76 = 10,426.07 : x
  2. Step 2: Convert to fraction form
    35,385.71/53,078.76 = 10,426.07/x
  3. Step 3: Cross multiply
    35,385.71x = 53,078.76 × 10,426.07
  4. Step 4: Simplify right side
    35,385.71x = 553,402,867.27
  5. Step 5: Solve for x
    x = 553,402,867.27/35,385.71
  6. Step 6: Final answer
    x = 15,639.16

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1.5x scale

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.