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Finding the Fourth Proportional to 47,068.60, 70,602.90 and 15,903.40

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Solution

The fourth proportional to 47,068.60, 70,602.90 and 15,903.40 is: 23,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,068.60 : 70,602.90 = 15,903.40 : x
  2. Step 2: Convert to fraction form
    47,068.60/70,602.90 = 15,903.40/x
  3. Step 3: Cross multiply
    47,068.60x = 70,602.90 × 15,903.40
  4. Step 4: Simplify right side
    47,068.60x = 1,122,826,159.86
  5. Step 5: Solve for x
    x = 1,122,826,159.86/47,068.60
  6. Step 6: Final answer
    x = 23,855.10

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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.