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Finding the Fourth Proportional to 64,838.57, 89,477.15 and 35,030.57

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Solution

The fourth proportional to 64,838.57, 89,477.15 and 35,030.57 is: 48,342.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,838.57 : 89,477.15 = 35,030.57 : x
  2. Step 2: Convert to fraction form
    64,838.57/89,477.15 = 35,030.57/x
  3. Step 3: Cross multiply
    64,838.57x = 89,477.15 × 35,030.57
  4. Step 4: Simplify right side
    64,838.57x = 3,134,434,943.94
  5. Step 5: Solve for x
    x = 3,134,434,943.94/64,838.57
  6. Step 6: Final answer
    x = 48,342.14

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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.