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Finding the Fourth Proportional to 35,235.66, 48,621.80 and 21,088.20

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Solution

The fourth proportional to 35,235.66, 48,621.80 and 21,088.20 is: 29,099.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,235.66 : 48,621.80 = 21,088.20 : x
  2. Step 2: Convert to fraction form
    35,235.66/48,621.80 = 21,088.20/x
  3. Step 3: Cross multiply
    35,235.66x = 48,621.80 × 21,088.20
  4. Step 4: Simplify right side
    35,235.66x = 1,025,346,242.76
  5. Step 5: Solve for x
    x = 1,025,346,242.76/35,235.66
  6. Step 6: Final answer
    x = 29,099.67

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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.