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Finding the Fourth Proportional to 60,321, 90,583.56 and 39,296.64

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Solution

The fourth proportional to 60,321, 90,583.56 and 39,296.64 is: 59,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,321 : 90,583.56 = 39,296.64 : x
  2. Step 2: Convert to fraction form
    60,321/90,583.56 = 39,296.64/x
  3. Step 3: Cross multiply
    60,321x = 90,583.56 × 39,296.64
  4. Step 4: Simplify right side
    60,321x = 3,559,629,547.24
  5. Step 5: Solve for x
    x = 3,559,629,547.24/60,321
  6. Step 6: Final answer
    x = 59,011.45

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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.