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Finding the Fourth Proportional to 70,838.90, 97,754.80 and 40,603.17

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Solution

The fourth proportional to 70,838.90, 97,754.80 and 40,603.17 is: 56,030.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,838.90 : 97,754.80 = 40,603.17 : x
  2. Step 2: Convert to fraction form
    70,838.90/97,754.80 = 40,603.17/x
  3. Step 3: Cross multiply
    70,838.90x = 97,754.80 × 40,603.17
  4. Step 4: Simplify right side
    70,838.90x = 3,969,155,103.92
  5. Step 5: Solve for x
    x = 3,969,155,103.92/70,838.90
  6. Step 6: Final answer
    x = 56,030.72

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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.