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Finding the Fourth Proportional to 70,937.60, 97,812.60 and 53,002.40

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Solution

The fourth proportional to 70,937.60, 97,812.60 and 53,002.40 is: 73,082.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,937.60 : 97,812.60 = 53,002.40 : x
  2. Step 2: Convert to fraction form
    70,937.60/97,812.60 = 53,002.40/x
  3. Step 3: Cross multiply
    70,937.60x = 97,812.60 × 53,002.40
  4. Step 4: Simplify right side
    70,937.60x = 5,184,302,550.24
  5. Step 5: Solve for x
    x = 5,184,302,550.24/70,937.60
  6. Step 6: Final answer
    x = 73,082.58

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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.